I have this project where I have connected a 3020 LED module which I ripped off from an IKEA JANSJÖ to a tp4056 v2 module which is connected to an old samsung 800mAh phone battery. I had fully charged the phone battery using the tp4056 module and then started to power the LED to find out how long d…

Li-ion Weird phenomenon

Noobian October 11, 2016, 11:37am 5

so how can I know the actual voltage of the battery? it still shows 3.5volts now.

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